Display screen or portion thereof with icon



FIG. 1 is a front view of an embodiment of a display screen or portion thereof with icon showing our new design in a first environment.

FIG. 2 depicts the interaction of the display screen or portion thereof with icon in the first environment with additional environmental elements; and,

FIG. 3 depicts the interaction of the display screen or portion thereof with icon in a second environment with the additional environmental elements of FIG. 2.

The broken lines appearing in the figures are for the purpose of illustrating the environmental structure of the article of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 